CN103341729A - Rotating shaft key groove machining method - Google Patents
Rotating shaft key groove machining method Download PDFInfo
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- CN103341729A CN103341729A CN2013102659521A CN201310265952A CN103341729A CN 103341729 A CN103341729 A CN 103341729A CN 2013102659521 A CN2013102659521 A CN 2013102659521A CN 201310265952 A CN201310265952 A CN 201310265952A CN 103341729 A CN103341729 A CN 103341729A
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- milling
- rotating shaft
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- key groove
- machining
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- 238000003754 machining Methods 0.000 title abstract description 13
- 238000000034 method Methods 0.000 title abstract description 6
- 238000003801 milling Methods 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 229910000997 High-speed steel Inorganic materials 0.000 claims abstract description 9
- 238000003672 processing method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of electric transmission systems, in particular to a rotating shaft key groove machining method. The method comprises the steps of accurate grinding-pressing-line marking-hole drilling-rough milling-cleaning- finish milling. The hole drilling step is that a twisting flat bottom drilling head of phi 19 is used for drilling a flat bottom auxiliary hole with the depth of 5.8mm in one end of a key groove. The rough milling step is that a high-speed steel stand type milling cutter of phi 19.8 is used for entering the auxiliary hole to mill the key groove in a rough mode, the size key width is 19.8mm, and the depth is 5.8mm. The finish milling step is that a double-edge high-speed steel whole key groove milling cutter of phi 20-0.03 is used for carrying out finish milling machining, finish machining allowances on two sides are 0.1mm, and an allowance on the bottom face is 0.2mm. The key groove is subjected to rough machining and finish machining, different machining cutting amounts are selected, and accordingly key groove machining quality is effectively guaranteed; service life of a knife is prolonged; machining efficiency is improved; roughness of the surface of the key groove is good.
Description
Technical field
The present invention relates to the electric drive system technical field, especially a kind of processing method of rotating shaft keyway.
Background technology
Rotating shaft is a strength member of diesel locomotive traction electric machine, rotating shaft material is forged steel pieces 35CrMo, roughing is by heat treatment quenching and tempering, its mechanical performance should reach: tensile strength: Rm 〉=35.53, yield strength: Re 〉=539.6, percentage elongation: A 〉=15%, the contraction percentage of area: Z 〉=45%, impact strength α k 〉=58.84, its case hardness: about HB280-300.According to the structural requirement of rotating shaft, a long 470mm, wide by 20 is arranged on its cylindrical, dark 6 keyways need machined.The processing method of former keyway is: 1, correct grinding rotating shaft axle journal cylindrical; 2, rotating shaft is placed on the vertical knee-type milling machine and to be supported to the axle journal level with vee-block and to be adjusted to parallel with platen and to compress; 3, the keyway processing length is determined in line; 4, correction makes the machine tool chief axis center consistent with the rotating shaft center; 5, process each cutting-in 1mm, feed t=0.1mm/r, cutting speed v=50m/min with the whole cotter mill cutter substep of the twolip high-speed steel of Φ 20-0.03 cutting-in.The whole keyway of finishing is processed 6 times back and forth.The method existing problems: the one, tool wear is big, the life-span is short; The 2nd, the keyway size is easily overproof, cause keyway suitable for reading big young down, and the keyway surface roughness is poor.
Summary of the invention
In order to overcome the deficiency of existing technology, the invention provides a kind of processing method of rotating shaft keyway.
The technical solution adopted for the present invention to solve the technical problems is: a kind of processing method of rotating shaft keyway, its step be for finish grind-compress-rule-proofread and correct-hole-rough milling-clear up-finish-milling,
Described boring: bore a flat fabrication hole with Φ 19 fried dough twist flat bottom bits at keyway one end, dark 5.8mm;
Described rough milling: with the vertical milling cutter diameter Φ 19.8 of high-speed steel, enter fabrication hole by fabrication hole and rough mill keyway, the wide 19.8mm of dimension key, dark 5.8mm;
Described finish-milling: carry out finish-milling processing, each 0.1mm of allowance for finish both sides, bottom surface 0.2mm with the whole cotter mill cutter of Φ 20-0.03 twolip high-speed steel.
According to another embodiment of the invention, further comprise the cutting data when rough milling: feed t=0.15mm/ changes, cutting speed V=20mm/min.
According to another embodiment of the invention, the cutting data when further comprising finish-milling: feed: t=0.10mm/ changes, cutting speed V=40mm/min.
According to another embodiment of the invention, further comprise and compressing: rotating shaft is placed on the vertical knee-type milling machine be supported to the axle journal level with vee-block and be adjusted to parallel with platen and compress.
According to another embodiment of the invention, further comprise correction: it is consistent with the rotating shaft center to proofread and correct the lathe alignment of shafts.
The invention has the beneficial effects as follows that the present invention is by carrying out the processing of thick Seiko order to keyway, and select different Cutting Parameter of Machining, one, effectively guarantee the keyway crudy; Two, improve cutter life; Three, improve working (machining) efficiency; Four, the keyway surface roughness is good.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the rotating shaft keyway schematic diagram that the present invention processes;
Fig. 2 is A-A segment structure schematic diagram among Fig. 1.
The specific embodiment
A kind of processing method of rotating shaft keyway is as follows:
One, correct grinding rotating shaft axle journal cylindrical.
Two, rotating shaft is placed on the vertical knee-type milling machine and to be supported to the axle journal level with vee-block and to be adjusted to parallel with platen and to compress.
Three, the keyway processing length is determined in line.
Four, the correction lathe alignment of shafts is consistent with the rotating shaft center.
Five, bore a flat fabrication hole with Φ 19 fried dough twist flat bottom bits at keyway one end, dark 5.8mm.
Six, with the vertical milling cutter diameter Φ 19.8 of high-speed steel, enter fabrication hole by fabrication hole and rough mill keyway, the dark 5.8mm of the wide 19.8mm of dimension key, cutting data when rough milling: feed t=0.15mm/ changes, cutting speed V=20mm/min.
Seven, machined iron filings in the cleaning keyway.
Eight, carry out finish-milling processing, each 0.1mm of allowance for finish both sides, bottom surface 0.2mm with the whole cotter mill cutter of Φ 20-0.03 twolip high-speed steel.Its cutting data: feed: t=0.10mm/ changes, cutting speed V=40mm/min.
Fig. 1, Fig. 2 are finished product rotating shaft and the keyway schematic diagram thereof of the present invention's processing, and the rotating shaft outside diameter is respectively ￠ 150
Mm, ￠ 152
Mm; Keyway is wide by 20
Mm, keyway long 470
Mm, the keyway bottom is to cylindrical area size 144
Mm.
The present invention can select different Cutting Parameter of Machining by keyway being carried out thick Seiko order processing, and the one, effectively guarantee the keyway crudy; The 2nd, improve cutter life; The 3rd, improve working (machining) efficiency; The 4th, the keyway surface roughness is good.The present invention is applicable to that part material intensity hardness is higher, and keyway is longer, the part that the keyway precision is higher, and keyway can improve 5 times cutter life simultaneously.
Claims (5)
1. the processing method of a rotating shaft keyway, its step is characterized in that for finish grind-compress-rule-proofread and correct-hole-rough milling-clear up-finish-milling:
Boring: bore a flat fabrication hole with Φ 19 fried dough twist flat bottom bits at keyway one end, dark 5.8mm;
Rough mill: with the vertical milling cutter diameter Φ 19.8 of high-speed steel, enter fabrication hole by fabrication hole and rough mill keyway, the wide 19.8mm of dimension key, dark 5.8mm;
Finish-milling: carry out finish-milling processing, each 0.1mm of allowance for finish both sides, bottom surface 0.2mm with the whole cotter mill cutter of Φ 20-0.03 twolip high-speed steel.
2. the processing method of rotating shaft keyway according to claim 1 is characterized in that, the cutting data when rough milling: feed t=0.15mm/ changes, cutting speed V=20mm/min.
3. the processing method of rotating shaft keyway according to claim 1 is characterized in that, the cutting data during finish-milling: feed: t=0.10mm/ changes, cutting speed V=40mm/min.
4. the processing method of rotating shaft keyway according to claim 1 is characterized in that, compresses: rotating shaft is placed on the vertical knee-type milling machine be supported to the axle journal level with vee-block and be adjusted to parallel with platen and compress.
5. the processing method of rotating shaft keyway according to claim 1 is characterized in that, proofreaies and correct: it is consistent with the rotating shaft center to proofread and correct the lathe alignment of shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102659521A CN103341729A (en) | 2013-06-28 | 2013-06-28 | Rotating shaft key groove machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102659521A CN103341729A (en) | 2013-06-28 | 2013-06-28 | Rotating shaft key groove machining method |
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| Publication Number | Publication Date |
|---|---|
| CN103341729A true CN103341729A (en) | 2013-10-09 |
Family
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| CN2013102659521A Pending CN103341729A (en) | 2013-06-28 | 2013-06-28 | Rotating shaft key groove machining method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103752925A (en) * | 2013-12-20 | 2014-04-30 | 柳州正菱集团有限公司 | Key slot finish-milling process for automobile brake adjustment arm cast part |
| CN103978344A (en) * | 2014-05-08 | 2014-08-13 | 哈尔滨电机厂有限责任公司 | Technology method for processing magnetic yoke key groove of generator rotor in construction site |
| CN104227335A (en) * | 2014-07-10 | 2014-12-24 | 精技电子（南通）有限公司 | Destressing processing method for support |
| CN105364419A (en) * | 2015-12-10 | 2016-03-02 | 常州天山重工机械有限公司 | Method for processing keyway through helical gear |
| CN105382498A (en) * | 2015-12-23 | 2016-03-09 | 常熟市淼泉压缩机配件有限公司 | Processing method for thin-wall inner-cavity slender shaft component |
| CN109202390A (en) * | 2018-08-15 | 2019-01-15 | 绵竹萱铭机械有限责任公司 | A kind of processing technology using Boring machine processing turbogenerator shaft |
| CN112223117A (en) * | 2020-09-27 | 2021-01-15 | 宁波江丰电子材料股份有限公司 | Method for processing stainless steel bar with flatness less than or equal to 0.03mm |
| CN113399953A (en) * | 2021-07-15 | 2021-09-17 | 湖南九鼎科技（集团）永州鼎立饲料有限公司 | Main shaft and shaft sleeve machining process convenient to overhaul and disassemble |
| CN113618487A (en) * | 2021-06-30 | 2021-11-09 | 中钢集团邢台机械轧辊有限公司 | Visualized machining method for key groove |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284734A (en) * | 2011-07-04 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Method for processing key grooves of shaft |
| CN102489762A (en) * | 2011-12-08 | 2012-06-13 | 南阳二机石油装备(集团)有限公司 | Numerical control keyway milling machine and processing method thereof |
-
2013
- 2013-06-28 CN CN2013102659521A patent/CN103341729A/en active Pending
Patent Citations (2)
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|---|---|---|---|---|
| CN102284734A (en) * | 2011-07-04 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Method for processing key grooves of shaft |
| CN102489762A (en) * | 2011-12-08 | 2012-06-13 | 南阳二机石油装备(集团)有限公司 | Numerical control keyway milling machine and processing method thereof |
Non-Patent Citations (3)
| Title |
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| 王亚峰: "普通铣床铣削键槽的加工方法与技巧", 《价值工程》, no. 27, 30 September 2012 (2012-09-30), pages 24 - 25 * |
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| 路亚光等: "键槽加工方法的改进", 《机械加工.冷加工》, no. 11, 30 November 1997 (1997-11-30), pages 13 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103737088B (en) * | 2013-12-13 | 2017-02-15 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103752925A (en) * | 2013-12-20 | 2014-04-30 | 柳州正菱集团有限公司 | Key slot finish-milling process for automobile brake adjustment arm cast part |
| CN103978344A (en) * | 2014-05-08 | 2014-08-13 | 哈尔滨电机厂有限责任公司 | Technology method for processing magnetic yoke key groove of generator rotor in construction site |
| CN103978344B (en) * | 2014-05-08 | 2016-05-25 | 哈尔滨电机厂有限责任公司 | The process of generator amature yoke keyway building site processing |
| CN104227335A (en) * | 2014-07-10 | 2014-12-24 | 精技电子（南通）有限公司 | Destressing processing method for support |
| CN105364419A (en) * | 2015-12-10 | 2016-03-02 | 常州天山重工机械有限公司 | Method for processing keyway through helical gear |
| CN105382498A (en) * | 2015-12-23 | 2016-03-09 | 常熟市淼泉压缩机配件有限公司 | Processing method for thin-wall inner-cavity slender shaft component |
| CN109202390A (en) * | 2018-08-15 | 2019-01-15 | 绵竹萱铭机械有限责任公司 | A kind of processing technology using Boring machine processing turbogenerator shaft |
| CN112223117A (en) * | 2020-09-27 | 2021-01-15 | 宁波江丰电子材料股份有限公司 | Method for processing stainless steel bar with flatness less than or equal to 0.03mm |
| CN113618487A (en) * | 2021-06-30 | 2021-11-09 | 中钢集团邢台机械轧辊有限公司 | Visualized machining method for key groove |
| CN113399953A (en) * | 2021-07-15 | 2021-09-17 | 湖南九鼎科技（集团）永州鼎立饲料有限公司 | Main shaft and shaft sleeve machining process convenient to overhaul and disassemble |
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Application publication date: 20131009 |